Expected performance for perimeter control
Link to this table

Water Quantity
Flow attenuation Little or no design benefit
Runoff volume reduction Little or no design benefit
Water Quality
Erosion prevention Little or no design benefit
Sediment control Primary design benefit
Nutrient loading Secondary design benefit
Pollutant removal
Total suspended solids Primary design benefit
Total phosphorus Secondary design benefit
Heavy metals Secondary design benefit
Floatables Little or no design benefit
Oil and grease Little or no design benefit